Mercury – SpitFire 4-Blade Aluminum Propeller | 12.8" Diameter x 19" Pitch | Right-Hand Rotation | Four Blades | Aluminum | Satin Finish | 8M8026600

Overview

There’s nothing quite like the feeling when your boat jumps onto plane, steady and sure, with every ounce of power translating into clean, confident thrust. The Mercury SpitFire 4-Blade Aluminum Propeller captures that moment perfectly — and delivers it every time. It is a prop built for boaters who love precision, responsiveness, and the kind of effortless control that makes every trip more enjoyable. Whether you’re chasing calm water speed or slicing through a bit of afternoon chop, the SpitFire 4-Blade makes your boat feel tuned in and ready for anything.

Key Features

• Diameter and Pitch: 12.8" Diameter x 19" Pitch
• Rotation: Right-Hand Rotation
• Blade Count: Four Blades
• Material: Patented Mercalloy Aluminum Alloy
• Finish: Satin Aluminum Finish
• Hub System: Flo-Torq II Hub Kit (835257K1) included for protection and easy installation
• Design Details: Aggressive four-blade geometry designed for speed, lift, and sharp, balanced handling

Engine & Boat Compatibility

• Designed for Mercury and Mariner 40–60 HP FourStroke BigFoot/Command Thrust outboards
• Compatible with Mercury 75–125 HP TwoStroke and FourStroke outboards (1978 and newer)
• Great for runabouts, fishing boats, and lightweight pontoons
• Performs equally well in freshwater or light saltwater

Performance Benefits

The SpitFire 4-Blade Aluminum Propeller takes the classic four-blade design and pushes it further. Its aggressive geometry grips the water with authority, translating your throttle input into immediate lift and control. You’ll feel your boat leap onto plane faster — up to 25% quicker acceleration compared to a typical three-blade prop — all while maintaining impressive top-end speed.

Once you’re cruising, the prop keeps your ride smooth and steady. The four blades deliver consistent thrust through turns and chop, giving your boat a planted, predictable feel. You’ll notice how quiet and composed it runs, even at midrange speeds, with noticeably reduced vibration. That balance and responsiveness make docking and low-speed maneuvering feel easier and more precise.

Mercury’s exclusive Mercalloy aluminum makes this prop both tough and forgiving. It’s strong enough to resist corrosion and impact yet flexible enough to absorb small bumps without damaging your drivetrain. With the included Flo-Torq II hub system, you get built-in shock absorption that protects your engine from sudden jolts. This prop doesn’t just perform — it endures.

Why This Prop Is a Strong Choice vs. Alternatives

• Quick Acceleration: Up to 25% faster hole shot compared to similar three-blade props.
• Exceptional Control: Four-blade design provides smoother turning and steadier cruising.
• Durable Yet Forgiving: Mercalloy aluminum resists impact and corrosion for long-lasting reliability.
• Efficient Design: Balances top-end speed, lift, and midrange efficiency.
• Built-In Protection: Flo-Torq II hub absorbs shock from underwater strikes to safeguard your drivetrain.

FAQ Section

Q1: Which Mercury engines does the SpitFire 4-Blade Propeller fit?

It’s compatible with Mercury and Mariner 40–60 HP FourStroke BigFoot/Command Thrust outboards and 75–125 HP TwoStroke and FourStroke outboards built from 1978 onward.

Q2: What makes this propeller different from other Mercury options?

The SpitFire combines the handling of a four-blade with the speed of a three-blade, offering faster acceleration, stronger lift, and smoother performance across the range.

Q3: How do I know if this pitch or size is right for my boat?

If you run a lightweight fishing boat, runabout, or small pontoon with a Mercury engine between 40 and 125 HP and want faster acceleration with clean handling, the 12.8" x 19" pitch is a great choice.

Q4: Can this prop be used in both saltwater and freshwater?

Yes. The corrosion-resistant Mercalloy aluminum performs well in both, though it’s best to rinse after saltwater use to maintain longevity.

Q5: What hub system does it use?

It uses Mercury’s Flo-Torq II Hub Kit, which cushions the drivetrain from impact and makes prop changes quick and simple.